CA949659A - Differential transformer mounting arrangement particularly for ground fault interrupter apparatus - Google Patents

Differential transformer mounting arrangement particularly for ground fault interrupter apparatus

Info

Publication number
CA949659A
CA949659A CA142,370A CA142370A CA949659A CA 949659 A CA949659 A CA 949659A CA 142370 A CA142370 A CA 142370A CA 949659 A CA949659 A CA 949659A
Authority
CA
Canada
Prior art keywords
ground fault
mounting arrangement
differential transformer
fault interrupter
transformer mounting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA142,370A
Other languages
English (en)
Other versions
CA142370S (en
Inventor
John J. Misencik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of CA949659A publication Critical patent/CA949659A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase AC
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase AC
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • H01F38/305—Constructions with toroidal magnetic core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2823—Wires
    • H01F2027/2833—Wires using coaxial cable as wire
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
    • H01H2083/148—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer with primary windings formed of rigid copper conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)
CA142,370A 1971-06-30 1972-05-17 Differential transformer mounting arrangement particularly for ground fault interrupter apparatus Expired CA949659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15833671A 1971-06-30 1971-06-30

Publications (1)

Publication Number Publication Date
CA949659A true CA949659A (en) 1974-06-18

Family

ID=22567656

Family Applications (1)

Application Number Title Priority Date Filing Date
CA142,370A Expired CA949659A (en) 1971-06-30 1972-05-17 Differential transformer mounting arrangement particularly for ground fault interrupter apparatus

Country Status (5)

Country Link
US (1) US3725741A (de)
AT (1) AT311467B (de)
CA (1) CA949659A (de)
CH (1) CH535482A (de)
DE (1) DE2231431A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034266A (en) * 1975-08-29 1977-07-05 Westinghouse Electric Corporation Electric wall receptacle with ground fault protection
FR2428308A1 (fr) * 1978-06-08 1980-01-04 Mayer Ferdy Transformateur differentiel de relais de protection d'installation electrique
US4591942A (en) * 1984-12-07 1986-05-27 General Electric Company Current sensing transformer assembly
CH667557A5 (de) * 1985-03-14 1988-10-14 Sprecher Energie Ag Hochspannungsschaltanlage.
FR2581264B1 (fr) * 1985-04-26 1993-04-30 Etude Realisa Disjoncteurs Transformateur de sommation et processus de sa fabrication
JPH03500948A (ja) * 1988-04-28 1991-02-28 エフエムティーティー　インコーポレーテッド 高絶縁層分離マトリックス変圧器
DE4410076A1 (de) * 1994-03-23 1995-09-28 Valentron Ag Fehlerstromschutzschalter
KR100206373B1 (ko) * 1994-12-30 1999-07-01 이형도 플라이백 트랜스포머의 동기케이블 결합장치
US5684683A (en) * 1996-02-09 1997-11-04 Wisconsin Alumni Research Foundation DC-to-DC power conversion with high current output
US6087916A (en) * 1996-07-30 2000-07-11 Soft Switching Technologies, Inc. Cooling of coaxial winding transformers in high power applications
US6760206B2 (en) 2001-03-16 2004-07-06 Cooper Industries, Inc. Current sensor supporting structure
GB2473014B (en) * 2009-08-27 2014-07-16 Sean Christopher Ganley Single and Multi Phase Current Sensor Combined with a Current Transformer
US8269592B1 (en) * 2010-05-05 2012-09-18 Lockheed Martin Corporation Pulse transformer
CN106710857B (zh) * 2015-07-31 2018-12-11 西门子公司 具有多匝导电杆的电流互感器
US10622800B2 (en) * 2017-08-09 2020-04-14 Schneider Electric USA, Inc. Integrated arc fault and ground fault current sensing package
US10852326B2 (en) * 2017-08-09 2020-12-01 Schneider Electric USA, Inc. Differential current sensing bussing method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1866345A (en) * 1929-12-19 1932-07-05 Westinghouse Electric & Mfg Co Current transformer with primary parallel resistance and flux leakage path
US2531820A (en) * 1943-02-03 1950-11-28 Rca Corp Voltage transformer
US2679025A (en) * 1952-05-28 1954-05-18 Rca Corp Magnetic testing system
US2849694A (en) * 1954-07-12 1958-08-26 Gen Electric Current transformer
GB833364A (en) * 1955-07-18 1960-04-21 Gen Electric Improvements in and relating to high voltage current transformers
NL229257A (de) * 1957-07-24
FR1288166A (fr) * 1961-02-08 1962-03-24 Comp Generale Electricite Perfectionnements aux transformateurs de mesure pour haute tension
US3154757A (en) * 1961-08-02 1964-10-27 F R Hannon & Sons Inc Transformer with secondary winding suspended within primary core
US3614694A (en) * 1969-09-17 1971-10-19 Atomic Energy Commission Coaxial cable high-voltage pulse isolation transformer

Also Published As

Publication number Publication date
CH535482A (de) 1973-03-31
DE2231431A1 (de) 1973-01-11
US3725741A (en) 1973-04-03
AT311467B (de) 1973-11-26

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